Ah right got you, compassmotNo I've configured the esc and the layout of motors this sets up the offsets of any interference when the motors are running for the apm board
It's when the quad or hex is clamped to the bench whilst the plugged in the computer and the motors are run on 50% I'm posting on my phone at moment but when kids go bed ill post a link to the video off the laptop
I haven't done the auto trim I'm going need some more leads for the extra channels thanks for the tip tho

This is the best guide I knew I had problems with instructions elsewhere this is the lestest guide from the horses mouth
http://copter.ardupilot.com/wiki/ac...rference_from_the_power_wires_ESCs_and_motors